Charles H. Spurgeon on Psalms 38:5

My wounds stink and are corrupt because of my foolishness. Apply this to the body, and it pictures a sad condition of disease; but read it of the soul, and it is to the life. Conscience lays on stripe after stripe till the swelling becomes a wound and suppurates, and the corruption within grows offensive. What a horrible creature man appears to be in his own consciousness when his depravity and vileness are fully opened up by the law of God, applied by the Holy Spirit! It is true there are diseases which are correctly described in this verse, when in the worst stage; but we prefer to receive the expressions as instructively figurative, since the words "because of my foolishness" point rather at a moral than a physical malady. Some of us know what it is to stink in our own nostrils, so as to loathe ourselves. Even the most filthy diseases cannot be so foul as sin. No ulcers, cancers, or putrifying sores, can match the unutterable vileness and pollution of iniquity. Our own perceptions have made us feel this. We write what we do know, and testify what we have seen; and even now we shudder to think that so much of evil should lie festering deep within our nature.